Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f3a86695cc76860…

MALICIOUS

PDF

184.7 KB Created: 2020-08-01 21:47:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49d67e70a3ecb9ab4958f775d61e9ba2 SHA-1: f6e2ce8c9cd1d64ac75bb2538ae96908ec335b5a SHA-256: 7f3a86695cc7686063e4ce8b9434611e10be179d58fc5e0de65420b460b26ef8
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to potentially harmful content. The document body, though heavily obfuscated, contains the URL and a query string suggesting a lure related to software safety. No scripts were extracted, but the presence of a malicious redirector indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=is+driver+booster+safe
    • http://files.burkardphotos.com/uploads/1/3/0/7/130776394/zolazunizepifevaguk.pdf
    • http://files.picaprograms.com/uploads/1/3/1/4/131438741/sevudoka.pdf
    • http://files.bustingbibleignorance.com/uploads/1/3/0/8/130813818/gugafaguvivobot.pdf
    • http://files.peterandpaulapixie.com/uploads/1/3/2/6/132681145/17d8ade.pdf
    • http://files.crestwoodexplorestheworld.org/uploads/1/3/2/6/132682134/8618174.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9573/6988/files/wiley_organic_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/fapuwazukigapekuno.pdf
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/46720977540.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/25462033590.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/notadenagefajofakiwu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2324/5216/files/vajidivig.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9590/files/babofuvatafa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/topogoxelodituminetabet.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/jiviv.pdf
    • https://cdn.shopify.com/s/files/1/0441/1287/1576/files/how_to_uninstall_java_9_on_mac.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53293114795.pdf
    • https://cdn.shopify.com/s/files/1/0434/6934/0822/files/3523577556.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wojifuxazax.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002911f.bin
d425fb19b7aa71fc255f3463bfb0114691ae7ea73e764f501f121152c2e5cf1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x2911F 5004 bytes
font_01_sfnt_off0002a237.bin
1b39fe1c7f12737388a90daf42a0d3cc5325d87b4de999cbb5afc5ba9b5839bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A237 16088 bytes